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The adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.64 g of adrenaline in 36.0 g CCl4 elevates the boiling point by 0.49o C. Define what is the molar mass of adrenaline? The Kb of CCl4 = 5.02oC/m.
a solution is prepared by dissolving 0.11 mol of acetic acid and 0.11 mol of ammonium chloride in enough water to make
a 295- flask contains pure helium at a pressure of 757 . a second flask with a volume of 460 contains pure argon at a
How is the characteristic of line spectrum determined in an element? Does each element produces a particular color?
How many atoms of neon occupy a volume of 14.3 L at STP.
the addition of aqueous ammonia to the cathode compartment of the cell described below reduces the cell potential.
For TiCl4, delta H (not) is 54.3 kJ/mol and delta S (not) is 133 J/mol*K what is the boiling point of TiCl4 in degrees C
If the volume of an unknown liquid is measured and found to be 6.510 L, what is the volume of the unknown liquid in milliliters?
Explain how much work is performed by 1 mole of water freezing to 1 mole of ice at 0 C at standard pressure? Density of ice at 0 C is 0.9168 g/mL Density of water at 0 C is 0.99984 g/mL
Define the enthalpy of vaporization for water is 40.65 kJmol21. As a design engineer for a project in a desert climate, you are exploring the option of using evaporative cooling. (a) If the air has an average volumetric heat capacity of 0.00130 J ..
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
determine the mass of snow that can be completely melted.use the table below to work the following
Calculate the entropy and Gibbs energy of mixing when the partition is removed. Assume that the gases are perfect.
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